Lock.



F. A. W. emi-SAU.

LOCK.

APPLICATION FILL() MAR.1B|1916.

Patented Sept. 12, 1916.

- JAW k/1W@ mi lill FREDERICK A.- W. GRIESAU, OF ALBANY, NEW YORK.

`Lock.

Specification of Letters Patent.

Application filed March 18, 1916. Serial No. 85,061.

To all whom t may concern: l Be it known that` I, FREDERICK A..W.

GRIESAU, a citizen of the United States o America, residing at the city of Albany, in the county of Albany and Stateof New York, have invented certain new and useful Improvements in Locks, of which the following is a specification.

My invention relates to locks, and the object of my invention is to provide a lock ,adapted to prevent the rotation of the wheel 'of an automobile; together with .such\ele ments and combinations as are hereinafter more particularly set forth and claimed. I accomplish these objects by means of the mechanism illustrated in the accompanying drawing, in which: .,Figurel/ is a plan.l Fig. 2 isa section al'dl'ligthe lines, l-l, on Fig. 1. Flg. 3 1s an enlarged sectional view, with parts broken away, of the lock proper. Fig. 4 is a section along the lines, 1-1, on Fig. 3.l

Similar letters refer to similar parts throughout the several views.

To the axle frame, A, I secure a plate, a, in connection with which I mount a plate, B, supported thereon by the braces, o, or in any suitable manner. The plate, B, is provided with a series of openings, C, therethrough adapted to receive the head, D, of the plunger. There are one or more openings, d, in the spokes of the wheel which will register with the openings, C, in the plate, B. In one of the openings, d, in the spokes, I place the barrel, E, of the lock. Within the barrel, E, I arrange-a'compressible plunger provided with a head,D,aspiral spring, F, a plate, f, and a bar, G. Projecting into the barrel, G, is as annular shoulder, it. The bar, G, may be pressed into the barrel, E, which will cause the spiral spring, F, to be pushed out and the head, D, of the plunger to enter one of the openings, C, provided the opening, C, is in register therewith; if not, the pressure on the end of the bar, G, will cause the spring, F, of the plun ger, which cannot be forced forward it resting against the plate, B, to become contracted. But if the wheel is moved so as to bring the opening, C, in'register with the head of the plunger, the plunger', under the influence of the contracted spring, will enter the opening, C, and thus lock the wheel.

Vllith'in the bar, G, I pivot the trigger, J, which has on one side a cam-shaped formation engaging with the cutaway-portion of the bar, Gr, which is so arranged that when the bar is pressed inward acting on the spring, F, the trigger, J, will be moved forward and the catch, K, under the influence of the spring, H, pressing against the heel, j, ofthe trigger, will come in contact with the annular shoulder', 71 which will prevent the head, D, of the plunger from being moved after the spring, F, has acted upon it; because the plate, f, has been moved forward and the end of the trigger, J, presses against it and the catch, K, of the trigger* being held by the annular shoulder, la, it is apparent that the plunger cannot be removed from the opening, C, until the catch has been liberated.

Around the bar, G, and within the barrel E, I place the spring, H, which is seated against the shoulder, it, against the heel, j, of the trigger, and against the shoulder, g, on the bar, Gr. One function of the spring, H, is to force the bar and therefore the plunger out of the barrel K, is liberated..

For the purpose of unlocking the wheel, I place in the barrel, E, the cam-shaped plate, M, rotated by means of the key, L, which when rotated will strike against the heel, j, of the trigger, J, and press the catch, K, out of connection with the shoulder, it, which will immediately relieve the spring, H, causing the bar and the plunger to be forced backward into the barrels' What I claim as my invention and desire to secure by Letters Patent is:

' l. A lock adapted to be used in connection with an automobile, comprising a plate secured to the axle frame; a series of openings through said plate; a lock inserted through one of the spokes of the wheel comprising a barrel; a compressible plunger therein, said plunger adapted to be inserted in one of said openings in said plate; means for locking said plunger. with its head inserted in said plate; with means for releasing the locking meansaforesaid; and means or withdrawing said plunger head when said locking means has been released.

2. A lock adapted to be used in connection with an automobile, comprising a plate provided with a series of openings therethrough.

secured to t-he aXle fra-me of an automobile-- a lock set in one of the spokes of the wheel comprising a barrel; a plunger; a spring connected with said plunger seated against the end of the plunger and also against a when the catch, Y

Patented Sept. l2, i916.

shoulder on said barrel; a trigger connected with the plunger within said barrel, said triggerso formed that when the plunger s so acted upon as to project its head into one of the openings of the plate said trigger will, when the plunger has entered the plate, become locked by engaging said shoulder on said barrel; a spring resting against said shoulder and against the plunger whereby, when the trigger has been released,the plunger will be forced out of connection with the plate; and means for releasing said triggerwhen desired.`

3. A lock adapted to be used in connection with an automobile, comprising a plate provided with a series of openings therethrough secured to the axle frame; a barrel adapted to be inserted through one of the spokes of the wheel; a resilient plunger placed in said barrel; a spring in the plunger; means in the plunger for holding it, when projected, in its projected position; with means for releasing the holdlng means when desired.

In testimony whereof I have affixed my signature in presence of two witnesses.

FREDERICK A. IV. GRIESAU.

Witnesses:

FREDERICK IV. CAMERON, BEULAH CARLE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. .0. 

